What you'll learn

Understand how back-pressure controls flows of data
Transform and consume infinite and intermittent streams of data with Akka Stream
implement systems that can scale out according to a varying workload
Design systems resilient to failures

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Taught in English

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There are 7 modules in this course

Reactive programming is a set of techniques for implementing scalable, resilient and responsive systems as per the Reactive Manifesto. Such systems are based on asynchronous message-passing, and their basic building-blocks are event handlers. This course teaches how to implement reactive systems in Scala and Akka by using high-level abstractions, such as actors, asynchronous computations, and reactive streams.

You will learn how to: - use, transform and sequence asynchronous computations using Future values - write concurrent reactive systems based on Actors and message passing, using untyped Akka and Akka Typed - design systems resilient to failures - implement systems that can scale out according to a varying workload - transform and consume infinite and intermittent streams of data with Akka Stream in a non-blocking way - understand how back-pressure controls flows of data

This module shows you how to get started with the course. After setting up your machine to work on and to submit assignments, it will provide you with a recap of the basics of the Scala language. Finally, you will encounter the first topic of the course, asynchronous programming with Futures.

What's included

8 videos9 readings3 programming assignments

8 videosTotal 131 minutes

Introduction to Programming Reactive Systems10 minutesPreview module
Tools Setup for Linux22 minutes
Tools Setup for Mac OS X21 minutes
Tools Setup for Windows18 minutes
Lecture 1.2-Functions and Pattern Matching19 minutes
Lecture 1.3-Collections12 minutes
Lecture 1.4-Asynchronous Programming11 minutes
Lecture 1.5-Futures14 minutes

9 readingsTotal 90 minutes

Course structure10 minutes
Evaluation10 minutes
Tools Setup (Please read)10 minutes
Cheat Sheet10 minutes
IntelliJ IDEA Tutorial10 minutes
SBT tutorial and Submission of Assignments (Please read)10 minutes
Learning Resources10 minutes
Scala Tutorial10 minutes
Scala Style Guide10 minutes

3 programming assignmentsTotal 540 minutes

Programming with Futures (verified track)180 minutes
Example Assignment180 minutes
Programming with Futures (audit track)180 minutes

This module presents the Actor model: after analyzing its advantages and strengths, you will learn the semantics and design principles of actor systems before learn how to concretely test actor-based programs

What's included

5 videos2 programming assignments

5 videosTotal 111 minutes

Lecture 2.1-Introduction: why actors?14 minutesPreview module
Lecture 2.2-The Actor Model13 minutes
Lecture 2.3-Message Processing Semantics27 minutes
Lecture 2.4-Designing Actor Systems38 minutes
Lecture 2.5-Testing Actor Systems17 minutes

2 programming assignmentsTotal 360 minutes

Binary Trees (verified track)180 minutes
Binary Trees (audit track)180 minutes

This module further explores the Actor model by showing useful patterns used to create complex and resilient programs

What's included

3 videos2 programming assignments

Actors allow you to decouple a program in units that can be distributed on a single or on multiple machines. This module elaborates on the power and the consequences of distributed computation

What's included

6 videos

Now that you are familiar with the Actor model, this module shows how to leverage Scala's powerful type system to write programs with more confidence by using typed actor descriptions

What's included

6 videos2 programming assignments

6 videosTotal 73 minutes

Lecture 5.1-Introduction to Protocols11 minutesPreview module
Lecture 5.2-Protocols in Akka Typed14 minutes
Lecture 5.3-Testing Akka Typed Behaviors8 minutes
Lecture 5.4-Akka Typed Facilities16 minutes
Lecture 5.5-Akka Typed Persistence12 minutes
Lecture 5.6-Supervision revisited10 minutes

2 programming assignmentsTotal 360 minutes

Transactor (verified track)180 minutes
Transactor (audit track)180 minutes

This module introduces the concept of data streams and the basic semantics of stream processing before showing how the Akka framework can be used to tackle common challenges in this domain

What's included

4 videos2 programming assignments

This final module elaborates on more complex and powerful patterns in stream processing as well as how to the integrate the actor model to create custom nodes of data processing